Home / 39,062.36-53,906.16-21,157.40

Finding the Fourth Proportional to 39,062.36, 53,906.16 and 21,157.40

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Solution

The fourth proportional to 39,062.36, 53,906.16 and 21,157.40 is: 29,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,062.36 : 53,906.16 = 21,157.40 : x
  2. Step 2: Convert to fraction form
    39,062.36/53,906.16 = 21,157.40/x
  3. Step 3: Cross multiply
    39,062.36x = 53,906.16 × 21,157.40
  4. Step 4: Simplify right side
    39,062.36x = 1,140,514,189.58
  5. Step 5: Solve for x
    x = 1,140,514,189.58/39,062.36
  6. Step 6: Final answer
    x = 29,197.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.